// 示例
var ourDog = {
    name: "Camper",
    legs: 4,
    tails: 1,
    friends: ["everything!"],
    bark: "bow-wow"
};

delete ourDog.bark;

// 初始化变量
var myDog = {
    name: "Happy Coder",
    legs: 4,
    tails: 1,
    friends: ["freeCodeCamp Campers"],
    bark: "woof"
};

// 请把你的代码写在这条注释以下
delete myDog.tails;
